Copper is a versatile material,commonly utilized in power transmission and electronic devices,but its relative high reactivity necessitates a long-lasting protective technique.Here,we report a method that combines pla...Copper is a versatile material,commonly utilized in power transmission and electronic devices,but its relative high reactivity necessitates a long-lasting protective technique.Here,we report a method that combines plasma-enhanced non-equilibrium magnetron sputtering physical vapor deposition(PEUMS-PVD)and anodization to construct a self-healing three-dimensional Ti/Al-doped TiO_(2)nanotubes/Ti_(3)AlC_(2)coating on the surface of Cu substrates.This novel strategy enhances the corrosion resistance of copper substrates in marine environments,with corrosion current densities of up to 4.5643×10^(−8)A/cm^(2).Among them,the doping of nano-aluminum particles makes the coating self-healing.The mechanistic analysis of the corrosion behaviors during early immersion experiments was conducted using electrochemical noise,and revealed that during the initial stages of coating immersion,uniform corrosion predominates,with a minor occurrence of localized corrosion.展开更多
During 1984 to 1990, a comparative etiologic studyand primary prevention for stomach cancer was carriedout in a high risk area in Zhuanghe County of LiaoningProvince. Because of the increase of consumption of fr-esh v...During 1984 to 1990, a comparative etiologic studyand primary prevention for stomach cancer was carriedout in a high risk area in Zhuanghe County of LiaoningProvince. Because of the increase of consumption of fr-esh vegetables and fruits (Protective factors), decreaseof eating salted pork and fishes which was verified tohave strong mutagenecity (risk factors), acute inflamma-tion and erosions accompanying with chronic gastritis havegot striking improvement. At the same time, serum betac-arotene also raised gradually. The authors stressed thatimprovement of economic situation and dietary habits mayplay an important role in primary prevention of precurso-res of stomach cancer but decrease of incidence of thiscancer is an event of 30 years or more later as the letentperiod of stomach cancer is rather long.展开更多
Types and characteristics of gastric dysplasia werestudied histopathologically. Besides the adenomatous,cryptal and globoid dysplasias, regenerative type of gas-tric dysplasia was described, especially about its histo...Types and characteristics of gastric dysplasia werestudied histopathologically. Besides the adenomatous,cryptal and globoid dysplasias, regenerative type of gas-tric dysplasia was described, especially about its histo-pathological features and histogenesis. The peculiarityof this type of gastric dysplasia just coincided with thefindings of gastric mucosal changes found in the inhabitantsliving in Liaodong Panisula-a high incidence area ofgastric cancer. According to the epidemiologic and histo-pathologic studies on the inhabitants of Zhuanghe Countyof Liaodong Panisula, it was found that high salted foodse.g. the salted pork and fish etc. showed strongmutagenecity. The authors detected that these were therisk factors and might be the leading cause of the gastricmucosal erosions and following by epithelial regenerativechanges. Malignant changes were detected in the regene-rative dysplastic lesions in pathologic sections. Therefore,gastric mucosal regeneration should not be oper looked asa precursor of gastric cancer in some cases.展开更多
Background and Objective Lung cancer, which has become the leading cause of tumor mortality in many countries, appears to be one of the most dangerous malignant tumors that
Backgroud and Objective Tumor metastasis is not only the malignant marker and characteristics of lung cancer, but also the main cause of failure to cure and lose their life of the
Resistance to cancer therapy continues to be a major limitation for the successful treatment of cancer. There are many published studies on therapy resistance in breast and prostate cancers; however, there are current...Resistance to cancer therapy continues to be a major limitation for the successful treatment of cancer. There are many published studies on therapy resistance in breast and prostate cancers; however, there are currently no data on molecular markers associated with resistance. The conflicting data were reported regarding the AKT/m-TOR signaling pathway components as markers predicting resistance. The AKT/m-TOR signaling pathway is involved in the development of many human cancers; its activation is related to cell proliferation, angiogenesis, apoptosis, as well as to therapy resistance. Molecular alterations in the AKT/m-TOR signaling pathway provide a platform to identify universal markers associated with the development of resistance to cancer therapy.展开更多
This paper discussed 378 cases of lung cancer which were identified pathologically in the thoracic department of China Medical University from 1980～1986. The sections were stained with H.E., PAS-ab and Keratin, and c...This paper discussed 378 cases of lung cancer which were identified pathologically in the thoracic department of China Medical University from 1980～1986. The sections were stained with H.E., PAS-ab and Keratin, and compared with sections of 131 cases of lung cancer being confirmed beforehand from 1978～1984. Chinese cases showed epidermoid carcinoma 165 (male 146), adenocarcinoma 136(male 82), small cell carcinoma 29 (male 21), large cell carcinoma 19 (male 15) and the others 29 (male 27); Japanese cases were 59(50), 53(25), 3 (2), 11(10), 3(0) respectively. The cases under 40 years of age were 23(6.1%) in China, 3(2.3%)in Japan. Both of them have similar character of histology. But the incidence of lung cancer in youth is higher in China.展开更多
Osteopontin (OPN) is associated with many diseases, and its role in tumor growth and metastasis has been studied in breast cancers. Previous studies have described anti-OPN antibodies that could inhibit tumor
More than 40% of patients with squamous cell carcinoma of the head and neck (SCCHN) have lymph node metastases (LNM) at the time of diagnosis. Metastasis is one of the main poor prognostic factors of SCCHN.
Androgens are intimately associated with prostate cancer development and progression; however, the exact roles of androgens in prostate cancer cells remain unclear. Our research focuses on the identification and
Background and Objective Our previous studies have proved that nm23-H1 gene was a tumor metastatic suppressive gene, tumor metastasis phenotype of human lung cancer could
Background and Objective Lung cancer is the leading cause of cancer death in both men and women. Tumor metastasis is an essential aspect of lung cancer progression. Nm23-H1 is
Background and Objective It has been proven that copy number gain/or loss (copy number variation CNV) in uences gene expression and result in phenotypic variation by
Background and Objective Lung cancer is the leading cause of cancer death in both men and women in both China and worldwide. Apoptosis is a highly regulated,
Objective and Methods Lung cancer has a fastest growing rate of morbidity and mortality among malignant tumors and poses a great threat to the human health. Chemotherapy, as one
Background and Objective Lung cancer has become the most frequent malignant cancer which threatens human health and life in the world. Although progresses have been made in
Background: Our previous studies have proved that nm23-H1 gene was a tumor metastatic suppressive gene, tumor metastasis phenotype of human lung cancer could be reversed by transfection of nm23-H1 cDNA, but
Background and Objective Apotosis is a programmed cell death process which can be induced by ectoor intra-cellular signals. Recent study indicates that genesis and development
Background and Objective Lung cancer is the most lethal malignangy that threatens human heath and lives nowadays in the world, and meanwhile is also the one with worst
Background and Objective Lung cancer, which has been proved to have fastest increasing rate of morbidity and mortality, appears to be one of the most dangerous malignant tumor that
基金Projects(42106051,42006046,U2106206) supported by the National Natural Science Foundation of ChinaProject(22373501D) supported by Hebei Provincial Key R&D Program,China。
文摘Copper is a versatile material,commonly utilized in power transmission and electronic devices,but its relative high reactivity necessitates a long-lasting protective technique.Here,we report a method that combines plasma-enhanced non-equilibrium magnetron sputtering physical vapor deposition(PEUMS-PVD)and anodization to construct a self-healing three-dimensional Ti/Al-doped TiO_(2)nanotubes/Ti_(3)AlC_(2)coating on the surface of Cu substrates.This novel strategy enhances the corrosion resistance of copper substrates in marine environments,with corrosion current densities of up to 4.5643×10^(−8)A/cm^(2).Among them,the doping of nano-aluminum particles makes the coating self-healing.The mechanistic analysis of the corrosion behaviors during early immersion experiments was conducted using electrochemical noise,and revealed that during the initial stages of coating immersion,uniform corrosion predominates,with a minor occurrence of localized corrosion.
基金This research was supported in part by a Grant-Aid for Oversea Cancer Research from the Ministry of Education,Science and Cultrue of Japan and reported at the 9th Asia Pacific Cancer Conference(Lahore, Pakistan, 1989) and the 15th International Cancer Co
文摘During 1984 to 1990, a comparative etiologic studyand primary prevention for stomach cancer was carriedout in a high risk area in Zhuanghe County of LiaoningProvince. Because of the increase of consumption of fr-esh vegetables and fruits (Protective factors), decreaseof eating salted pork and fishes which was verified tohave strong mutagenecity (risk factors), acute inflamma-tion and erosions accompanying with chronic gastritis havegot striking improvement. At the same time, serum betac-arotene also raised gradually. The authors stressed thatimprovement of economic situation and dietary habits mayplay an important role in primary prevention of precurso-res of stomach cancer but decrease of incidence of thiscancer is an event of 30 years or more later as the letentperiod of stomach cancer is rather long.
基金This research was supported by the National "7.5" Research Grant on Cancer.
文摘Types and characteristics of gastric dysplasia werestudied histopathologically. Besides the adenomatous,cryptal and globoid dysplasias, regenerative type of gas-tric dysplasia was described, especially about its histo-pathological features and histogenesis. The peculiarityof this type of gastric dysplasia just coincided with thefindings of gastric mucosal changes found in the inhabitantsliving in Liaodong Panisula-a high incidence area ofgastric cancer. According to the epidemiologic and histo-pathologic studies on the inhabitants of Zhuanghe Countyof Liaodong Panisula, it was found that high salted foodse.g. the salted pork and fish etc. showed strongmutagenecity. The authors detected that these were therisk factors and might be the leading cause of the gastricmucosal erosions and following by epithelial regenerativechanges. Malignant changes were detected in the regene-rative dysplastic lesions in pathologic sections. Therefore,gastric mucosal regeneration should not be oper looked asa precursor of gastric cancer in some cases.
基金supported by a grant from the key project of the National Natural Science Foundation of China (to Qinghua ZHOU)(No. 30430300)National Natural Science Foundation of China (to Qinghua ZHOU)(No. 30670922)INTERNATION Scienc and Techniquie COOPRATION PROGRAM OF CHINA (ISCP) (to Qinghua ZHOU)(No.2006DFB32330)
文摘Background and Objective Lung cancer, which has become the leading cause of tumor mortality in many countries, appears to be one of the most dangerous malignant tumors that
基金supported by grants from National Natural Sciences Foundation of China (to Qinghua ZHOU, No.3007033 )
文摘Backgroud and Objective Tumor metastasis is not only the malignant marker and characteristics of lung cancer, but also the main cause of failure to cure and lose their life of the
文摘Resistance to cancer therapy continues to be a major limitation for the successful treatment of cancer. There are many published studies on therapy resistance in breast and prostate cancers; however, there are currently no data on molecular markers associated with resistance. The conflicting data were reported regarding the AKT/m-TOR signaling pathway components as markers predicting resistance. The AKT/m-TOR signaling pathway is involved in the development of many human cancers; its activation is related to cell proliferation, angiogenesis, apoptosis, as well as to therapy resistance. Molecular alterations in the AKT/m-TOR signaling pathway provide a platform to identify universal markers associated with the development of resistance to cancer therapy.
文摘This paper discussed 378 cases of lung cancer which were identified pathologically in the thoracic department of China Medical University from 1980～1986. The sections were stained with H.E., PAS-ab and Keratin, and compared with sections of 131 cases of lung cancer being confirmed beforehand from 1978～1984. Chinese cases showed epidermoid carcinoma 165 (male 146), adenocarcinoma 136(male 82), small cell carcinoma 29 (male 21), large cell carcinoma 19 (male 15) and the others 29 (male 27); Japanese cases were 59(50), 53(25), 3 (2), 11(10), 3(0) respectively. The cases under 40 years of age were 23(6.1%) in China, 3(2.3%)in Japan. Both of them have similar character of histology. But the incidence of lung cancer in youth is higher in China.
文摘Osteopontin (OPN) is associated with many diseases, and its role in tumor growth and metastasis has been studied in breast cancers. Previous studies have described anti-OPN antibodies that could inhibit tumor
文摘More than 40% of patients with squamous cell carcinoma of the head and neck (SCCHN) have lymph node metastases (LNM) at the time of diagnosis. Metastasis is one of the main poor prognostic factors of SCCHN.
文摘Androgens are intimately associated with prostate cancer development and progression; however, the exact roles of androgens in prostate cancer cells remain unclear. Our research focuses on the identification and
基金supported by the grants from the Key Project of National Natural Science Foundation of China (No.30430300 , to Qinghua ZHOU)Key Projects of Tian-jin Sci-Tech Support Program (No. 07SYSYSF05000 and No. 06YFSZSF05300, to Qinghua ZHOU)
文摘Background and Objective Our previous studies have proved that nm23-H1 gene was a tumor metastatic suppressive gene, tumor metastasis phenotype of human lung cancer could
基金supported by the following grants to Qinghua ZHOU:The Key Project of National Natural Science Foundation of China (304303 00)The Major Project of Tianjin Sci-Tech Support Programme (07SYSYS F05000)+3 种基金The Key Project of Tianjin Sci-Tech Support Programme (06YFS ZSF05300)The Building Project of Tianjin Sci-Tech Innovation Platform (07SYSYJC27900)863 National Major Projects (2006AA02A401)National Key Basic Research and Development Plan (973 Plan) program (20 07CBS914800)
文摘Background and Objective Lung cancer is the leading cause of cancer death in both men and women. Tumor metastasis is an essential aspect of lung cancer progression. Nm23-H1 is
基金supported by a grant from the key project of the National Natural Science Foundation of China (to Qinghua ZHOU)(No. 30430300)National Natural Science Foundation of China (to Qinghua ZHOU)(No. 30670922)INTERNATION Scienc and Techniquie COOPRATION PROGRAM OF CHINA (ISCP) (to Qinghua ZHOU)(No.2006DFB32330)
文摘Background and Objective It has been proven that copy number gain/or loss (copy number variation CNV) in uences gene expression and result in phenotypic variation by
基金supported by the following grants to Qinghua ZHOU:The Key Project of National Natural Science Foundation of China (30430300)The Major Project of Tianjin Sci-Tech Support Programme (07SYSYS F05000)+3 种基金The Key Project of Tianjin Sci-Tech Support Programme (06YFS ZSF05300)The Building Project of Tianjin Sci-Tech Innovation Platform (07SYSYJC27900)863 National Major Projects (2006AA02A401)National Key Basic Research and Development Plan (973 Plan) program (20 07CBS914800)
文摘Background and Objective Lung cancer is the leading cause of cancer death in both men and women in both China and worldwide. Apoptosis is a highly regulated,
基金supported by the grants from the Key Project of National Natural Science Foundation of China (No.30430300 , to Qinghua ZHOU)Key Projects of Tianjin Sci-Tech Support Program (No. 07SYSYSF05000 and No. 06YF-SZSF05300, to Qinghua ZHOU)
文摘Objective and Methods Lung cancer has a fastest growing rate of morbidity and mortality among malignant tumors and poses a great threat to the human health. Chemotherapy, as one
基金supported by a grant from the key project of the National Natural Science Foundation of China (to Qinghua ZHOU)(No. 30430300)National Natural Science Foundation of China (to Qinghua ZHOU)(No. 30670922)INTERNATION Scienc and Techniquie COOPRATION PROGRAM OF CHINA (ISCP) (to Qinghua ZHOU)(No.2006DFB32330)
文摘Background and Objective Lung cancer has become the most frequent malignant cancer which threatens human health and life in the world. Although progresses have been made in
基金supported by the grants from the Key Project of National Natural Science Foundation of China (No.30430300 , to Qinghua ZHOU)Key Projects of Tianjin Sci-Tech Support Program (No. 07SY-SYSF05000 and No. 06YFSZSF05300, to Qinghua ZHOU)
文摘Background: Our previous studies have proved that nm23-H1 gene was a tumor metastatic suppressive gene, tumor metastasis phenotype of human lung cancer could be reversed by transfection of nm23-H1 cDNA, but
基金supported by a grant from the key project of the National Natural Science Foundation of China (to Qinghua ZHOU)(No. 30430300)National Natural Science Foundation of China (to Qinghua ZHOU)(No. 30670922)INTERNATION Scienc and Techniquie COOPRATION PROGRAM OF CHINA (ISCP) (to Qinghua ZHOU)(No.2006DFB32330)
文摘Background and Objective Apotosis is a programmed cell death process which can be induced by ectoor intra-cellular signals. Recent study indicates that genesis and development
基金supported by a grant from the key project of the National Natural Science Foundation of China (to Qinghua ZHOU)(No. 30430300)National Natural Science Foundation of China (to Qinghua ZHOU)(No. 30670922)INTERNATION Scienc and Techniquie COOPRATION PROGRAM OF CHINA (ISCP) (to Qinghua ZHOU)(No.2006DFB32330)
文摘Background and Objective Lung cancer is the most lethal malignangy that threatens human heath and lives nowadays in the world, and meanwhile is also the one with worst
基金supported by a grant from the key project of the National Natural Science Foundation of China (to QinghuaZHOU)(No. 30430300)National Natural Science Foundation of China (to Qinghua ZHOU)(No. 30670922)INTERNATION Scienc and Techniquie COOPRATION PROGRAM OF CHINA (ISCP) (to Qinghua ZHOU)(No.2006DFB32330)
文摘Background and Objective Lung cancer, which has been proved to have fastest increasing rate of morbidity and mortality, appears to be one of the most dangerous malignant tumor that
